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Vishay General Semiconductor - Diodes Division SMA6J17AHM3/61
- Part No.:
- SMA6J17AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J17AHM3/61.pdf
- Description:
- TVS DIODE 17VWM 26.7VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA6J17AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR at IT = 1 mA), 31.4 V maximum clamping voltage (VC) at 111 A (8/20 µs), 600 W peak pulse power (10/1000 µs), and operates from –55 °C to +150 °C. It protects MOSFETs and ICs in industrial power supplies.
For engineers reviewing the SMA6J17AHM3/61 datasheet, SMA6J17AHM3/61 pinout, SMA6J17AHM3/61 application, or SMA6J17AHM3/61 equivalent, key selection criteria include unidirectional polarity, 31.4 V clamping at 111 A (8/20 µs), 120 °C/W junction-to-ambient thermal resistance, RoHS-compliant halogen-free construction (M3 suffix), and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown above its VWM of 17 V. Its dynamic resistance (RD) is 0.259 Ω, enabling low-voltage overshoot during transient suppression. The device meets MSL Level 1 per J-STD-020 and withstands 260 °C lead-free reflow peak temperature.
Clamping performance is defined for both 10/1000 µs (600 W) and 8/20 µs (4000 W) waveforms, with VC scaling linearly per VC = RD × IPP + VBR(max). Junction temperature derating follows Fig. 2, reducing peak pulse current capability above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse working voltage before conduction begins; sets operating margin below breakdown. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPP = 111 A | 31.4 V (8/20 µs) - Clamped voltage seen by protected circuit during high-energy surge; limits stress on downstream components. |
| PPPM (10/1000 µs) | 600 W - Sustained transient energy handling capacity under standard lightning-surge waveform; defines PCB pad sizing requirements. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient on standard 5.0 mm × 5.0 mm copper pads; determines max power dissipation at given ambient temperature. |
| Polarity | Unidirectional - Cathode marked by band; blocks forward current beyond ~3.5 V (IF = 25 A), conducts only in reverse avalanche mode. |
| Package | SMA (DO-214AC) - Surface-mount outline with 2.54 mm lead pitch; compatible with standard pick-and-place and reflow processes. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to system ground or low-side reference; completes clamping loop during transient events. |
| Cathode | Reverse voltage sensing / Avalanche conduction node | Connected to protected line (e.g., 17 V rail); initiates clamping when voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables high-density PCB layouts and compatibility with automated SMT assembly without height interference. |
| Halogen-free, RoHS-compliant (M3) | Meets IPC-J-STD-201 Class 2 whisker resistance and environmental compliance mandates for industrial end equipment. |
| MSL Level 1 rating | Allows unlimited floor life and single reflow exposure up to 260 °C peak, eliminating moisture sensitivity handling constraints. |
| 150 °C maximum junction temperature | Supports operation in enclosed industrial enclosures or near heat-generating components without thermal shutdown risk. |
| 4000 W peak pulse power (8/20 µs) | Provides robust immunity against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation over rated lifetime. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 12–24 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role: Unidirectional TVS clamp placed between input rail and chassis ground to shunt surge energy away from upstream rectifiers and downstream DC-DC controllers. Use Value: Limits transient voltage to ≤31.4 V during 111 A 8/20 µs events, preventing latch-up or gate oxide rupture in 36 V-rated MOSFETs and PMICs. | Use Scenario: Safeguarding LIN bus interface ICs and microcontroller I/O pins in BCMs exposed to battery voltage spikes during alternator regulation faults. IC Role / Device Role: Point-of-load TVS on 12 V supply rail feeding LIN transceivers, positioned adjacent to connector entry point. Use Value: Clamps 100 V/100 ms load dump transients to <32 V within 1 ns response time, preserving signal integrity and meeting ISO 7637-2 Pulse 5a immunity requirements. |
| Telecom Remote Radio Unit (RRU) | Consumer Smart Home Hub Power Input |
Use Scenario: Shielding 48 V PoE-powered RF front-end modules from induced lightning surges entering via outdoor cabling. IC Role / Device Role: Primary surge suppressor on DC input stage prior to DC-DC conversion, mounted with minimum trace length to ground plane. Use Value: Absorbs 4000 W (8/20 µs) without failure, maintaining VC ≤31.4 V to protect GaN FET drivers and analog front-end ADCs. | Use Scenario: Securing USB-C PD input circuits in smart home hubs against ESD and hot-plug transients during field deployment. IC Role / Device Role: Secondary-level TVS on 20 V input rail downstream of primary fuse and common-mode choke. Use Value: Delivers sub-35 V clamping at 50 A (8/20 µs), ensuring USB PD controller ICs (e.g., CYPD3177) remain within absolute maximum ratings during repeated surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J17A-E3/61 | Same electrical specs and package, but RoHS-compliant with lead-free solderability (E3 suffix); no halogen-free certification. | Preferred for consumer electronics where halogen content is unrestricted but lead-free compliance is mandatory. | Select SMA6J17A-E3/61 if halogen-free requirement is not specified and cost optimization is prioritized. |
| SMB6J17A-M3/61 | Identical VWM, VBR, and VC, but in SMB (DO-214AA) package - 3.56 mm wide vs. SMA's 2.54 mm; 10% higher PPPM (660 W). | Better thermal performance due to larger copper pad area; suited for higher ambient temperature environments (>85 °C). | Choose SMB6J17A-M3/61 when board layout allows wider footprint and enhanced thermal margin is required. |
Compared with SMA6J17A-E3/61, the SMA6J17AHM3/61 adds halogen-free compliance without sacrificing clamping performance; versus SMB6J17A-M3/61, it trades 10% lower PPPM and reduced thermal mass for space-constrained designs requiring minimal PCB real estate.
Availability
SMA6J17AHM3/61 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom remote radio units, and consumer smart home hub designs requiring stable component supply and long-term lifecycle support.
Supply support for SMA6J17AHM3/61 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The SMA6JxxA series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive subsystems, and infrastructure equipment where robustness and consistent clamping behavior are critical.
FAQ
What is the maximum clamping voltage of the SMA6J17AHM3/61 under an 8/20 µs surge?
The SMA6J17AHM3/61 has a maximum clamping voltage (VC) of 31.4 V when subjected to a peak pulse current (IPP) of 111 A with an 8/20 µs waveform. This value is measured per the test conditions specified in the Vishay datasheet Document Number 89460 and reflects worst-case clamping performance at TA = 25 °C on recommended PCB pads.
Does the SMA6J17AHM3/61 support lead-free reflow soldering?
Yes, the SMA6J17AHM3/61 is qualified for lead-free reflow soldering with a maximum peak temperature of 260 °C, compliant with J-STD-020 MSL Level 1. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the M3 suffix confirms halogen-free and RoHS-compliant construction.
What is the breakdown voltage tolerance range for the SMA6J17AHM3/61?
The SMA6J17AHM3/61 has a guaranteed breakdown voltage (VBR) range of 18.9 V to 20.9 V at test current IT = 1 mA, per the Vishay datasheet. This 10.5% tolerance ensures reliable turn-on behavior across manufacturing lots while maintaining design margin relative to its 17 V stand-off voltage (VWM).
Can the SMA6J17AHM3/61 be used in bidirectional protection circuits?
No, the SMA6J17AHM3/61 is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts avalanche current only in reverse bias and blocks forward current up to ~3.5 V. For bidirectional protection, a dedicated bidirectional TVS such as SMBJ17CA or a back-to-back diode configuration is required.
What is the thermal resistance junction-to-ambient for the SMA6J17AHM3/61?
The SMA6J17AHM3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on PCBs with 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay thermal characteristics table. This value assumes natural convection and defines safe power derating above TA = 25 °C.
SMA6J17AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 26.7V
- Current - Peak Pulse (10/1000µs):
- 22.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J17AHM3/61 FAQ
1.How can I place an order for SMA6J17AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J17AHM3/61 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMA6J17AHM3/61 reliable?
The price and inventory of SMA6J17AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J17AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J17AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J17AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J17AHM3/61?
SMA6J17AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J17AHM3/61 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMA6J17AHM3/61?
For technical support, including SMA6J17AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J17AHM3/61 requirements.
6.How does Aetrix verify that SMA6J17AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J17AHM3/61 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMA6J17AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J17AHM3/61?
All SMA6J17AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J17AHM3/61, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMA6J17AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J17AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J17AHM3/61 Tags
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